//
//  UIButton+UIButton_bgColor.h
//  Xspcf
//
//  Created by sunshine on 16/7/21.
//  Copyright © 2016年 sun. All rights reserved.
//

#import <UIKit/UIKit.h>

@protocol BackButtonHandlerProtocol <NSObject>
@optional
-(BOOL)backCilck;
@end

@interface UIViewController (Sun) <BackButtonHandlerProtocol>

@end
